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Chlamydia trachomatis by Transcription-Mediated Amplification (TMA)
Ordering Recommendation
Preferred test for detecting Chlamydia trachomatis in variety of specimens. This test does not include confirmation of positive results by an alternative nucleic acid target. If confirmation of positive results by an alternate nucleic acid target is required, refer to Chlamydia trachomatis and Neisseria gonorrhoeae (CTNG) by Transcription-Mediated Amplification (TMA) with Reflex to CT/NG Confirmation (2011164).
New York DOH Approval Status
Specimen Required
ThinPrep Collection: Patient must be 14 years of age or older.
Vaginal, throat, eye, or rectal specimen collected with pink swab from Aptima MultiTest Swab Specimen Collection kit (ARUP supply #55224 PK/50 or #55229 PK/10) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at 800-522-2787.
Also acceptable: Cervical, eye, or male urethral specimen collected with blue swab from Aptima Unisex Swab Specimen Collection kit (ARUP supply #28907 PK/50 or #54555 PK/10), first-catch urine in sterile container or cervical brush in ThinPrep Pap Test Collection Kit.
Refer to "Sample Collection for the Diagnosis of STD" under Specimen Handling at www.aruplab.com for specific specimen collection and transport instructions.
Swab: Place swab in swab specimen transport tube, break shaft off at scoreline, then recap tube.
Urine: Transfer 2 mL urine within 24 hours to Aptima Urine Specimen Transport Tube (ARUP supply #28908 PK/50 or #54556 PK/10). Liquid level must be between fill lines on tube.
ThinPrep: Vortex ThinPrep PreservCyt solution and transfer 1 mL to an Aptima Specimen Transfer Tube (ARUP supply #42711) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at 800-522-2787. To reduce the potential for contamination, ThinPrep specimens should be poured off, using sterile technique, into the Aptima Specimen Transfer Tube prior to cytology testing.
Refrigerated.
Large white swab included in Aptima Unisex Swab Specimen Collection kit is for preparatory cleaning of the endocervix and is unacceptable for testing. Specimens in any transport media other than indicated above. Specimens in swab transport media without a swab.
Specimen source is required.
MultiTest or Unisex Swab: Ambient: 2 months; Refrigerated: 2 months; Frozen: 1 year
Aptima Urine Specimen Transport Tube: Ambient: 1 month; Refrigerated: 1 month; Frozen: 3 months
Aptima Specimen Transfer Tube: Ambient: 2 weeks; Refrigerated: 1 month; Frozen: 1 year
ThinPrep: Ambient: 1 month; Refrigerated: 1 month; Frozen: Unacceptable
Methodology
Qualitative Transcription-Mediated Amplification (TMA)
Performed
Sun-Sat
Reported
1-4 days
Reference Interval
Negative
Interpretive Data
This test is intended for medical purposes only and is not valid for the evaluation of suspected sexual abuse or for other forensic purposes. In certain contexts, culture may be required to meet applicable laws and regulations for diagnosis of C. trachomatis and N. gonorrhoeae infections. Per 2014 CDC recommendations, this test does not include confirmation of positive results by an alternative nucleic acid target.
Depends on Specimen/Source/Method
Note
Hotline History
CPT Codes
87491
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0060243 | C. trachomatis by TMA | 43304-5 |
| 0060755 | APTIMA Media Type | 74384-9 |
| 2005507 | Specimen Source | 31208-2 |
Aliases
- Chlamydia PCR
- CT PCR
- NAA
- Nucleic Acid Amplification Test (NAAT)
